The coaches challenge change couldn't have come soon enough. I still think it should reset at half-time, but it is at least a start.
Not so sure about the in-game flopping penalty. In principle I like the idea of trying to stamp out flopping. However, already we've seen it misused in the Summer League, with a player getting hit in the face for no-call, flopping as a result, and getting the tech. It's tricky, because NBA refs are terrible - now they have more opportunities to insert themselves into the game. Unsure if it will work.